SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ak-schlafmedizin.de
SSL/TLS Certificate
SSL/TLS Certificate for ak-schlafmedizin.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- drweess.de
- Valid from
- Jun 14, 2026
- Valid until
- Sep 12, 2026 (48 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06E28564248C2539E743967CAD40C2BD7697
- SHA-256 fingerprint
- 7C:CE:B9:85:07:4B:8F:73:1E:31:50:EC:17:27:B1:83:0F:5B:04:77:07:D6:2D:20:09:BD:6F:5F:B4:40:B2:89
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ak-schlafmedizin.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ak-schlafmedizin.de continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
Free for your first domain: uptime, DNS, and certificate together. No credit card.